<div class="nav">
    <div>
        <dl>
            <dt><a href="/">首页</a></dt>
        </dl>
        {pc:content action="category" catid="0" order="listorder ASC"}
        {loop $data $r}
        <dl>
            <dt>{$r['catname']}</dt>
            {loop subcat($r['catid']) $v}
            <dd>
                <a href="{$v['url']}">{$v['catname']}</a>
            </dd>
            {/loop}
        </dl>
        {/loop}
        {/pc}
    </div>
</div>